State of the Planet

News from the Columbia Climate School

Ecology64

  • A Sea Change, Deep Under Antarctic Waters

    A Sea Change, Deep Under Antarctic Waters

    The frigid seabottom off Antarctica holds a surprising riot of life: colorful carpets of sponges, starfish, sea cucumbers and many other soft, bottom-dwelling animals, shown on images from robotic submarines. Now, it appears that many such communities could fast disappear, due to warming climate. Scientists sailing on an icebreaker last year have just published a study showing that gigantic…

  • Working to Save Blue Iguanas

    Working to Save Blue Iguanas

    Though the Grand Cayman blue iguana was once on the brink of extinction, health experts from the Wildlife Conservation Society have made great strides in saving the endangered reptile.

  • Wondrous Wildlife of The Week – The Pebble Toad

    Wondrous Wildlife of The Week – The Pebble Toad

    Organisms in the natural world are constantly striving to avoid predation. Some prey depend on morphological characters to outsmart a worthy predator, utilizing camouflage or mimicry to avoid detection; others must engage in battle, relying on agility or strength. The Venezuela pebble toad, however, has an extremely peculiar defense mechanism: it rolls itself into the…

  • Critter Corner: News Roundup on Biodiversity – Week of 9/5

    Critter Corner: News Roundup on Biodiversity – Week of 9/5

    Read more about White Nose Syndrome Bats, Hen Sex Strategy, Circadian Clocks in Blind Fish, The Discovery of an Ancient Woolly Rhino, a New Shark Species in this week’s edition of The Critter Corner.

  • Apply for *NEW* Executive Course in Energy and Sustainability

    Apply for *NEW* Executive Course in Energy and Sustainability

    Learn more about CERC’s new course, Energy and Sustainability, which examines the evolution of issues, attitudes, and policies surrounding energy production and use through time, and its relationship to sustainable living.

  • Removing Dams and Restoring Rivers

    Removing Dams and Restoring Rivers

    On Sept. 17, 2011, the removal of two large hydroelectric dams on the Elwha River in Washington State, which have blocked migrating salmon from reaching their spawning grounds for almost 100 years, will begin. While this is the largest dam removal project in U.S. history, it is just one of several major dam removals planned…

  • Tree Rings, Ecology and Culture in Mongolia

    Tree Rings, Ecology and Culture in Mongolia

    “How do you know when you are in wilderness? When you have walked beyond where most people walk, when you have left the road … when the easiest route to walk is not a path tread by people but rather the path tread by wolves, moose and deer.”

  • Mountaintop Removal: Laying Waste to Streams and Forests

    Mountaintop Removal: Laying Waste to Streams and Forests

    Mountaintop removal mining, an environmentally devastating form of coal mining that involves blowing off the tops of mountains, has already leveled over 500 mountains and buried 1,200 miles of streams in the Appalachians.

  • Sewage Still Plagues Hudson River

    Sewage Still Plagues Hudson River

    People are swimming in the Hudson again, and while clumps of sewage rarely float by anymore, the water is not reliably clean, says a report released this week from the environmental group Riverkeeper. Four years of testing by Riverkeeper and Columbia’s Lamont-Doherty Earth Observatory, show recurring hot spots, especially after rain, when overwhelmed sewers divert…

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • A Sea Change, Deep Under Antarctic Waters

    A Sea Change, Deep Under Antarctic Waters

    The frigid seabottom off Antarctica holds a surprising riot of life: colorful carpets of sponges, starfish, sea cucumbers and many other soft, bottom-dwelling animals, shown on images from robotic submarines. Now, it appears that many such communities could fast disappear, due to warming climate. Scientists sailing on an icebreaker last year have just published a study showing that gigantic…

  • Working to Save Blue Iguanas

    Working to Save Blue Iguanas

    Though the Grand Cayman blue iguana was once on the brink of extinction, health experts from the Wildlife Conservation Society have made great strides in saving the endangered reptile.

  • Wondrous Wildlife of The Week – The Pebble Toad

    Wondrous Wildlife of The Week – The Pebble Toad

    Organisms in the natural world are constantly striving to avoid predation. Some prey depend on morphological characters to outsmart a worthy predator, utilizing camouflage or mimicry to avoid detection; others must engage in battle, relying on agility or strength. The Venezuela pebble toad, however, has an extremely peculiar defense mechanism: it rolls itself into the…

  • Critter Corner: News Roundup on Biodiversity – Week of 9/5

    Critter Corner: News Roundup on Biodiversity – Week of 9/5

    Read more about White Nose Syndrome Bats, Hen Sex Strategy, Circadian Clocks in Blind Fish, The Discovery of an Ancient Woolly Rhino, a New Shark Species in this week’s edition of The Critter Corner.

  • Apply for *NEW* Executive Course in Energy and Sustainability

    Apply for *NEW* Executive Course in Energy and Sustainability

    Learn more about CERC’s new course, Energy and Sustainability, which examines the evolution of issues, attitudes, and policies surrounding energy production and use through time, and its relationship to sustainable living.

  • Removing Dams and Restoring Rivers

    Removing Dams and Restoring Rivers

    On Sept. 17, 2011, the removal of two large hydroelectric dams on the Elwha River in Washington State, which have blocked migrating salmon from reaching their spawning grounds for almost 100 years, will begin. While this is the largest dam removal project in U.S. history, it is just one of several major dam removals planned…

  • Tree Rings, Ecology and Culture in Mongolia

    Tree Rings, Ecology and Culture in Mongolia

    “How do you know when you are in wilderness? When you have walked beyond where most people walk, when you have left the road … when the easiest route to walk is not a path tread by people but rather the path tread by wolves, moose and deer.”

  • Mountaintop Removal: Laying Waste to Streams and Forests

    Mountaintop Removal: Laying Waste to Streams and Forests

    Mountaintop removal mining, an environmentally devastating form of coal mining that involves blowing off the tops of mountains, has already leveled over 500 mountains and buried 1,200 miles of streams in the Appalachians.

  • Sewage Still Plagues Hudson River

    Sewage Still Plagues Hudson River

    People are swimming in the Hudson again, and while clumps of sewage rarely float by anymore, the water is not reliably clean, says a report released this week from the environmental group Riverkeeper. Four years of testing by Riverkeeper and Columbia’s Lamont-Doherty Earth Observatory, show recurring hot spots, especially after rain, when overwhelmed sewers divert…